docstr: Return the hashed code of this file writer
docstr_tok: ["Return","the","hashed","code","of","this","file","writer"]
code: def hash_code(self):
      """Return the hashed code of this file writer"""
      hash_code = super().hash_code()
  
      m = hashlib.sha256()
      m.update(hash_code.encode())
      m.update(self._codec.encode())
      return m.hexdigest()
  
imports: import os
  import hashlib
  import json
  import numpy
  import tensorflow
  from avro.schema import Parse
  from avro.datafile import DataFileWriter
  from avro.io import DatumWriter
  from tests.test_atds_avro.utils.file_writer import FileWriter
  from tests.test_atds_avro.utils.generator.varlen_tensor_generator import VarLenTensorGeneratorBase
  from tensorflow_io.python.experimental.atds.features import DenseFeature, SparseFeature, VarlenFeature
label_desc: Use image node_id 3 for calling the ATDSWriter obj's underlying member method code with example usage: obj.hash_code() and returns: m